CVE-2025-43865 Information

Description

React Router is a router for React. In versions on the 7.0 branch prior to version 7.5.2 it’s possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values ??of the data object passed to the HTML. This issue has been patched in version 7.5.2.

Reference

https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/routes.ts#L87 https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111 https://github.com/remix-run/react-router/security/advisories/GHSA-cpj6-fhp6-mr6j